A study on the status of invasive Tilapia species (Coptodon zillii Gervais, 1848 and Oreochromis aureus Steindachner, 1864) in aquatic ecosystems of Khuzestan province, Iran
Introduction: Invasive fishes are a major threat to biodiversity of aquatic ecosystems. Tilapia species are invasive due to reproductive, diet and behavioral characteristics and high resistance to environmental conditions, pollution and diseases. So far, two exotic species Coptodon zillii and Oreoch...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | fas |
| Published: |
Shahid Beheshti University
2017-12-01
|
| Series: | علوم محیطی |
| Subjects: | |
| Online Access: | https://envs.sbu.ac.ir/article_97889_bd647b742b0efe3c5563aaed2a8aa245.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850175463497924608 |
|---|---|
| author | Hussein Valikhani Asghar Abdoli Bahram HassanzadehKiabi Farshad Nejat Mohammad Sadeghsaba Milad Khosravi |
| author_facet | Hussein Valikhani Asghar Abdoli Bahram HassanzadehKiabi Farshad Nejat Mohammad Sadeghsaba Milad Khosravi |
| author_sort | Hussein Valikhani |
| collection | DOAJ |
| description | Introduction: Invasive fishes are a major threat to biodiversity of aquatic ecosystems. Tilapia species are invasive due to reproductive, diet and behavioral characteristics and high resistance to environmental conditions, pollution and diseases. So far, two exotic species Coptodon zillii and Oreochromis aureus and also a native species Iranocichla hormuzensis of these species were reported from Iran. In recent years, exotic tilapia species invaded Iran and its neighboring countries inland waters and have had significant ecological and economic impacts. The aim of this study is to do a preliminary survey on the status of exotic tilapia species in Khuzestan province, Iran. Material and methods: The present study was carried out from November 2014 to September 2015 to determine the abundance of tilapia species (C. zillii and O. aureus) in the Shadegan wetland and some local fishery markets in Khuzestan province. In addition to, we evaluated presence or absence of the species in some cyprinid fish farms in the province. Results and discussion: The results showed that the catchment and supply of C. zillii is high and the species is one of the dominated fish in the Shadegan Wetland. In this study, O. aureus was not caught from the Shadegan wetland but observations show that the species is dispersed to other areas, especially in rivers and its abundance is increased. The tilapia species especially C. zillii are pests in some fish farms and the reduction of fish production was noted. The presence of the species in some fish hatcheries is increased the possibility of their transfer to other regions. Conclusions: At the moment, it seems that the best course of action to take action against tilapia is to prevent them from entering to other bodies of water (especially by aquaculture). The continuous studies to determine various aspects of the introductions, potential range prediction, and regular monitoring should be also considered. Overall, a compilation method and also ecologically sustainable water management, reduction of water contaminants and decrease of fishing pressure on native species should be adopted for controlling and reducing of these species. |
| format | Article |
| id | doaj-art-c4e5f6e02bf64bd2b78ea30b23c7a129 |
| institution | OA Journals |
| issn | 1735-1324 2588-6177 |
| language | fas |
| publishDate | 2017-12-01 |
| publisher | Shahid Beheshti University |
| record_format | Article |
| series | علوم محیطی |
| spelling | doaj-art-c4e5f6e02bf64bd2b78ea30b23c7a1292025-08-20T02:19:27ZfasShahid Beheshti Universityعلوم محیطی1735-13242588-61772017-12-01154294497889A study on the status of invasive Tilapia species (Coptodon zillii Gervais, 1848 and Oreochromis aureus Steindachner, 1864) in aquatic ecosystems of Khuzestan province, IranHussein Valikhani0Asghar Abdoli1Bahram HassanzadehKiabi2Farshad Nejat3Mohammad Sadeghsaba4Milad Khosravi5Department of Biodiversity and Ecosystem Management, Institute of Environmental Sciences Research, Shahid Beheshti University, G. C., Tehran, IranDepartment of Biodiversity and Ecosystem Management, Institute of Environmental Sciences Research, Shahid Beheshti University, G. C., Tehran, IranDepartment of Marine Biology, Faculty of Biological Sciences and Technologies, Shahid Beheshti University, G. C, Tehran, IranDepartment of Biodiversity and Ecosystem Management, Institute of Environmental Sciences Research, Shahid Beheshti University, G. C., Tehran, IranMarine Environmental Office, Provincial Office of Environment of Khuzestan, Ahvaz, IranDepartment of Zoology, Faculty of Biological Sciences and Technologies, Shahid Beheshti University, G. C., Tehran, IranIntroduction: Invasive fishes are a major threat to biodiversity of aquatic ecosystems. Tilapia species are invasive due to reproductive, diet and behavioral characteristics and high resistance to environmental conditions, pollution and diseases. So far, two exotic species Coptodon zillii and Oreochromis aureus and also a native species Iranocichla hormuzensis of these species were reported from Iran. In recent years, exotic tilapia species invaded Iran and its neighboring countries inland waters and have had significant ecological and economic impacts. The aim of this study is to do a preliminary survey on the status of exotic tilapia species in Khuzestan province, Iran. Material and methods: The present study was carried out from November 2014 to September 2015 to determine the abundance of tilapia species (C. zillii and O. aureus) in the Shadegan wetland and some local fishery markets in Khuzestan province. In addition to, we evaluated presence or absence of the species in some cyprinid fish farms in the province. Results and discussion: The results showed that the catchment and supply of C. zillii is high and the species is one of the dominated fish in the Shadegan Wetland. In this study, O. aureus was not caught from the Shadegan wetland but observations show that the species is dispersed to other areas, especially in rivers and its abundance is increased. The tilapia species especially C. zillii are pests in some fish farms and the reduction of fish production was noted. The presence of the species in some fish hatcheries is increased the possibility of their transfer to other regions. Conclusions: At the moment, it seems that the best course of action to take action against tilapia is to prevent them from entering to other bodies of water (especially by aquaculture). The continuous studies to determine various aspects of the introductions, potential range prediction, and regular monitoring should be also considered. Overall, a compilation method and also ecologically sustainable water management, reduction of water contaminants and decrease of fishing pressure on native species should be adopted for controlling and reducing of these species.https://envs.sbu.ac.ir/article_97889_bd647b742b0efe3c5563aaed2a8aa245.pdfaquacultureinvasive specieskhuzestan provincered-belly tilapiashadegan wetland |
| spellingShingle | Hussein Valikhani Asghar Abdoli Bahram HassanzadehKiabi Farshad Nejat Mohammad Sadeghsaba Milad Khosravi A study on the status of invasive Tilapia species (Coptodon zillii Gervais, 1848 and Oreochromis aureus Steindachner, 1864) in aquatic ecosystems of Khuzestan province, Iran علوم محیطی aquaculture invasive species khuzestan province red-belly tilapia shadegan wetland |
| title | A study on the status of invasive Tilapia species (Coptodon zillii Gervais, 1848 and Oreochromis aureus Steindachner, 1864) in aquatic ecosystems of Khuzestan province, Iran |
| title_full | A study on the status of invasive Tilapia species (Coptodon zillii Gervais, 1848 and Oreochromis aureus Steindachner, 1864) in aquatic ecosystems of Khuzestan province, Iran |
| title_fullStr | A study on the status of invasive Tilapia species (Coptodon zillii Gervais, 1848 and Oreochromis aureus Steindachner, 1864) in aquatic ecosystems of Khuzestan province, Iran |
| title_full_unstemmed | A study on the status of invasive Tilapia species (Coptodon zillii Gervais, 1848 and Oreochromis aureus Steindachner, 1864) in aquatic ecosystems of Khuzestan province, Iran |
| title_short | A study on the status of invasive Tilapia species (Coptodon zillii Gervais, 1848 and Oreochromis aureus Steindachner, 1864) in aquatic ecosystems of Khuzestan province, Iran |
| title_sort | study on the status of invasive tilapia species coptodon zillii gervais 1848 and oreochromis aureus steindachner 1864 in aquatic ecosystems of khuzestan province iran |
| topic | aquaculture invasive species khuzestan province red-belly tilapia shadegan wetland |
| url | https://envs.sbu.ac.ir/article_97889_bd647b742b0efe3c5563aaed2a8aa245.pdf |
| work_keys_str_mv | AT husseinvalikhani astudyonthestatusofinvasivetilapiaspeciescoptodonzilliigervais1848andoreochromisaureussteindachner1864inaquaticecosystemsofkhuzestanprovinceiran AT asgharabdoli astudyonthestatusofinvasivetilapiaspeciescoptodonzilliigervais1848andoreochromisaureussteindachner1864inaquaticecosystemsofkhuzestanprovinceiran AT bahramhassanzadehkiabi astudyonthestatusofinvasivetilapiaspeciescoptodonzilliigervais1848andoreochromisaureussteindachner1864inaquaticecosystemsofkhuzestanprovinceiran AT farshadnejat astudyonthestatusofinvasivetilapiaspeciescoptodonzilliigervais1848andoreochromisaureussteindachner1864inaquaticecosystemsofkhuzestanprovinceiran AT mohammadsadeghsaba astudyonthestatusofinvasivetilapiaspeciescoptodonzilliigervais1848andoreochromisaureussteindachner1864inaquaticecosystemsofkhuzestanprovinceiran AT miladkhosravi astudyonthestatusofinvasivetilapiaspeciescoptodonzilliigervais1848andoreochromisaureussteindachner1864inaquaticecosystemsofkhuzestanprovinceiran AT husseinvalikhani studyonthestatusofinvasivetilapiaspeciescoptodonzilliigervais1848andoreochromisaureussteindachner1864inaquaticecosystemsofkhuzestanprovinceiran AT asgharabdoli studyonthestatusofinvasivetilapiaspeciescoptodonzilliigervais1848andoreochromisaureussteindachner1864inaquaticecosystemsofkhuzestanprovinceiran AT bahramhassanzadehkiabi studyonthestatusofinvasivetilapiaspeciescoptodonzilliigervais1848andoreochromisaureussteindachner1864inaquaticecosystemsofkhuzestanprovinceiran AT farshadnejat studyonthestatusofinvasivetilapiaspeciescoptodonzilliigervais1848andoreochromisaureussteindachner1864inaquaticecosystemsofkhuzestanprovinceiran AT mohammadsadeghsaba studyonthestatusofinvasivetilapiaspeciescoptodonzilliigervais1848andoreochromisaureussteindachner1864inaquaticecosystemsofkhuzestanprovinceiran AT miladkhosravi studyonthestatusofinvasivetilapiaspeciescoptodonzilliigervais1848andoreochromisaureussteindachner1864inaquaticecosystemsofkhuzestanprovinceiran |